When I'm playing games for example, every 1-2 minutes my game switches to desktop.

It's not that it changes his current tab by hitting a button or such, it's just automatic. And it is very annoying.

It's not one game, it happens to all of my games. I find it the most irritating in games, but it also happens when I'm trying to type something. Now for example I'm able to type because I clicked with my left cursor in the "What's your question" box. But like after 30 seconds something happens. It is as if I click with my mouse outside of the typing box and I'm unable to type. (Can't describe it any better) Even though I never clicked outside the box. Once again it's like the current tab goes unactive. I really can't work nor game with this.

Something remarkable is that sometimes the connection to any network fals out. This is only like every 10-15 minutes. But it's not the router that falls out, because when the connection falls out I still have the option to just click on the network in the network and sharing center.

I have no idea if this has something to do with each other.

A response would be appreciated!